Mandatory Credit: Photo by GARY HE/EPA-EFE/Shutterstock (10506101k) Democratic Presidential Candidate Andrew Yang (R) and his wife Evelyn Yang (L) prepare to speak to voters at a rally in Iowa City, Iowa, USA, 14 December 2019 (issued 15 December 2019). The businessman became the seventh and final candidate to make the Democratic Presidential Debate on December 19. Presidential Candidate Andrew Yang and wife Evelyn speak to Iowa Voters, Iowa City, USA - 14 Dec 2019